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Paper   IPM / Particles / 8950
School of Particles and Accelerator
  Title:   NNLO QCD Contributions to the Flavor Non-Singlet Sector of F2(x,Q2)
  Author(s): 
1.  Ali Naghi Khorramian
2.  Shahin Atashbar Tehrani
  Status:   Published
  Journal: Phys. Rev. D
  No.:  7
  Vol.:  78
  Year:  2008
  Pages:   074019-074031
  Supported by:  IPM
  Abstract:
We present the results of our QCD analysis for non-singlet unpolarized quark distributions and structure function F2(x,Q2). New parameterizations are derived for the non-singlet quark distributions for the kinematic wide range of x and Q2. The analysis is based on the Jacobi polynomials expansion of the structure function. The higher twist contributions of proton and deuteron structure function are obtained in the large x region. Our calculations for non-singlet unpolarized quark distribution functions based on the Jacobi polynomials method are in good agreement with the other theoretical models. The values of QCD and s(M2 z ) are determined.

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